Squashed 'go-enry/' content from commit 7e3a9a7

git-subtree-dir: go-enry
git-subtree-split: 7e3a9a7241

internal/code-generator/assets/alias.go.tmpl

@@ -0,0 +1,35 @@
+package data
+
+import "strings"
+
+// LanguageByAliasMap keeps alias for different languages and use the name of the languages as an alias too.
+// All the keys (alias or not) are written in lower case and the whitespaces has been replaced by underscores.
+var LanguageByAliasMap = map[string]string{
+	{{range $alias, $language := . -}}
+		"{{ $alias }}":	{{ printf "%q" $language -}},
+	{{end -}}
+}
+
+// LanguageByAlias looks up the language name by it's alias or name.
+// It mirrors the logic of github linguist and is needed e.g for heuristcs.yml
+// that mixes names and aliases in a language field (see XPM example).
+func LanguageByAlias(langOrAlias string) (lang string, ok bool) {
+	k := convertToAliasKey(langOrAlias)
+	lang, ok = LanguageByAliasMap[k]
+	return
+}
+
+
+// convertToAliasKey converts language name to a key in LanguageByAliasMap.
+// Following
+//   - internal.code-generator.generator.convertToAliasKey()
+//   - GetLanguageByAlias()
+//
+// conventions.
+// It is here to avoid dependency on "generate" and "enry" packages.
+func convertToAliasKey(langName string) string {
+	ak := strings.SplitN(langName, `,`, 2)[0]
+	ak = strings.Replace(ak, ` `, `_`, -1)
+	ak = strings.ToLower(ak)
+	return ak
+}